Absorption bands (cm-1) and their peak assignments
LDPE (Low density Polyethylene)
545 -CH2 Rocking Vibration
1464 -CH3  anti symmetric deformation
1472 -CH2  symmetric deformation
1677 -CH3  symmetric deformation
2937 -CH2  anti symmetric deformation
2896 -CH3  symmetric stretching
Table 3: Characteristic peak values in FTIR spectra for virgin LDPE.